Patents Assigned to Anthony Mfg. Corp., Industrial Div.
  • Vandal resistant locking device for pop-up sprinkler nozzle housings
    Patent number: 5141157
    Abstract: A pop-up sprinkler having a nozzle housing threadably coupled to a pop-up stem, and including an axially projecting tab formed on the upper end of the stem which cooperates with spaced ribs formed on the inside of the nozzle housing to prevent over tightening of the nozzle housing relative to the stem during assembly and which resists unthreading of the nozzle housing from the stem to prevent vandals from unthreading the nozzle housing from the stem.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 25, 1992
    Assignee: Anthony Mfg. Corp., Industrial Div.
    Inventors: Joseph U. Han, Hendrik Amirkhanjan, Christopher M. Moralez